- Are these jars truly airtight?
- Yes, the wire clamp presses the lid against a silicone gasket for a tight seal. Check that the gasket sits flat and the clamp is snug before storing liquids.
- Can I use them for canning?
- No. Clamp jars are not rated for hot-water-bath or pressure canning. Use them for dry storage, refrigerator pickles and fermenting instead.
- Are they dishwasher safe?
- The glass jars are, but hand wash the lids and gaskets to keep the seal and finish intact.
- How much do they hold?
- Each jar holds 16 oz, about two cups, which fits a pound of coffee, a bag of pasta or a small batch of ferment.
- Do the gaskets need replacing?
- Yes, eventually. Inspect them for cracks or looseness and replace worn gaskets to keep the seal.
- Where is the Lukvuzo Round Glass Jars 16oz 6-Pack with Airtight Clamp Lids cheapest?
- At Lowe's, for $91.47, as of our latest check.